Huaneng Power International, Inc. Power Generation Within China Decreases by 5.40% for the First Three Quarters of 2012

 Huaneng Power International, Inc. Power Generation Within China Decreases by
                  5.40% for the First Three Quarters of 2012

PR Newswire

BEIJING, Oct. 15, 2012

BEIJING, Oct. 15, 2012 /PRNewswire/ -- Huaneng Power International, Inc.
("HPI" or the "Company") (NYSE: HNP; HKEx: 902; SSE: 600011) today announced
its power generation for the first three quarters of 2012.

According to the Company's preliminary statistics, as of 30 September 2012,
the Company's total power generation within China on consolidated basis
amounted to 223.662 billion kWh, representing a decrease of 5.40% over the
same period last year; accumulated electricity sold amounted to 210.916
billion kWh, representing a decrease of 5.33% over the same period last year.

The decrease in power generation of the Company was mainly attributable to the
following reasons:

 1. Affected by the slower economic growth nationwide and the weak demand for
    electricity, the power generation across the country grew by only
    approximately 3%. The growth of power generation in the areas where the
    Company's power plants are located increased by 0.74% on consolidated
    basis, and the power generation by coal-fired generating plants decreased
    by over 3.5% on consolidated basis over the same period last year.
 2. The average capacity growth rate of the Company for the first three
    quarters of 2012 was 2.4 percentage points lower than that in the
    locations where the Company's power plants are situated, which affected
    the Company's share in the power generation market.
 3. During the period from May to September 2012, there had been a rich supply
    of water to hydropower plants in the provinces and municipalities of
    Hunan, Jiangxi, Chongqing, Fujian, Gansu and Yunnan, leading to a very
    high loading rate of hydropower units. In particular, there had been a
    sharp increase in the hydropower generation provided to Guangdong from
    Three Gorges, Yunnan and Guizhou. The rise of hydropower generation
    narrowed the demand for coal-fired power generation in the provinces where
    hydropower is generated or provided, and significantly affected the
    Company's generation output.
 4. The long-term suspension of the coal mines in the surrounding areas of
    Yunnan Diandong due to safety accidents in the first quarter of this year
    resulted in tense supply of coal to the Company's two power plants in
    Diandong, and affected electricity production of the Company.

The power generation and electricity sold by each of the Company's domestic
power plants for the first three quarters of 2012 are listed below (in billion
kWh):

                 Power      Power
                                               Electricity Electricity
                 generation generation
Domestic Power                                 sold for    sold for    Change
Plant            for the    for the    Change  the first   the first
                 first      first              three       three        
                 three      three              quarters of quarters of
                 quarters   quarters           2012        2011
                 of 2012    of 2011
Liaoning Province
Dalian           4.350      5.054      -13.93% 4.136       4.795       -13.74%
Dandong          2.362      2.518      -6.20%  2.247       2.396       -6.22%
Yingkou          5.808      6.539      -11.18% 5.433       6.124       -11.28%
Yingkou          2.438      2.282      6.84%   2.284       2.129       7.28%
Co-generation
Wafangdian
                 0.071      0.037      91.89%  0.070       0.035       100%
Wind Power
Suzihe           0.009      -          -       0.008       -           -
Hydropower
Inner Mongolia
Huade Wind Power 0.151      0.093      62.37%  0.150       0.092       63.04%
Hebei Province
Shang'an         10.985     11.109     -1.12%  10.248      10.447      -1.90%
Kangbao Wind     0.042      0.00029    14383%  0.042       -           -
Power
Gansu Province
Pingliang        6.512      9.066      -28.17% 6.148       8.582       -28.36%
Jiuquan Wind     0.580      -          -       0.575       -           -
Power
Beijing
Beijing          3.342      3.691      -9.46%  2.946       3.263       -9.71%
Co-generation
Beijing
Co-generation    2.622      -          -       2.558       -           -

(Combined Cycle)
Tianjin
Yangliuqing
                 4.989      5.095      -2.08%  4.643       4.766       -2.58%
Co-generation
Shanxi Province
Yushe            2.646      3.064      -13.64% 2.445       2.830       -13.60%
Zuoquan          4.543      -          -       4.226       -           -
Shandong Province
Dezhou           11.430     11.335     0.84%   10.726      10.666      0.56%
Jining           3.790      3.769      0.56%   3.517       3.503       0.40%
Xindian          2.649      2.505      5.75%   2.480       2.344       5.80%
Weihai           8.488      8.248      2.91%   8.081       7.848       2.97%
Rizhao Phase II  5.855      6.337      -7.61%  5.543       5.983       -7.50%
Zhanhua          1.361      1.232      10.47%  1.243       1.126       10.39%
Co-generation
Henan Province
Qinbei           13.163     11.673     12.76%  12.402      11.009      12.65%
Jiangsu Province
Nantong          6.578      7.148      -7.97%  6.273       6.819       -8.01%
Nanjing          2.792      2.936      -4.90%  2.636       2.769       -4.80%
Taicang          9.117      8.648      5.42%   8.673       8.179       6.04%
Huaiyin          5.426      5.843      -7.14%  5.103       5.494       -7.12%
Jinling
                 3.314      2.819      17.56%  3.240       2.752       17.73%
(Combined-cycle)
Jinling          8.047      8.641      -6.87%  7.659       8.124       -5.72%
(Coal-fired)
Qidong Wind      0.256      0.214      19.63%  0.250       0.209       19.62%
Power
Shanghai
Shidongkou First 5.973      5.865      1.84%   5.638       5.520       2.14%
Shidongkou       5.016      5.616      -10.68% 4.812       5.390       -10.72%
Second
Shanghai
                 1.199      1.031      16.29%  1.169       1.005       16.32%
Combined-cycle
Shidongkou Power 5.638      4.812      17.17%  5.356       4.538       18.03%
Chongqing
Luohuang         8.449      12.119     -30.28% 7.795       11.229      -30.58%
Zhejiang Province
Yuhuan           17.465     20.431     -14.52% 16.599      19.452      -14.67%
Hubei Province
Enshi Maweigou
                 0.039      -          -       0.038       -           -
Hydropower
Hunan Province
Yueyang          5.662      7.961      -28.88% 5.285       7.485       -29.39%
Xiangqi          0.126      -          -       0.125       -           -
Hydropower
Jiangxi Province
Jinggangshan     6.382      7.188      -11.21% 6.074       6.835       -11.13%
Fujian Province
Fuzhou           9.711      12.610     -22.99% 9.206       11.979      -23.15%
Guangdong Province
Shantou          4.693      5.355      -12.36% 4.442       5.020       -11.51%
Coal-fired
Haimen           9.523      10.685     -10.88% 9.089       10.206      -10.94%
Yunnan Province
Diandong Energy  6.251      8.432      -25.87% 5.769       7.770       -25.75%
Yuwang Energy    3.819      4.427      -13.73% 3.543       4.067       -12.88%
Total            223.662    236.428    -5.40%  210.916     222.780     -5.33%

The accumulated power generation of Tuas Power Limited in Singapore accounted
for a market share of 26.2% in Singapore for the first three quarters of 2012,
representing a decrease of 1.3 percentage points compared to the same period
last year.

About the Company

The Company is one of China's largest listed power producers with controlled
generation capacity of 60,317MW and equity-based generation capacity of
55,357MW. The power plants of the Company are located in 19 provinces,
municipalities and autonomous regions in China. The Company also has a
wholly-owned power company in Singapore.

For enquiries, please contact:

Huaneng Power International, Inc.
Ms. MENG Jing / Ms. ZHAO Lin
Tel: (8610) 6608 6765 / 6322 6596
Fax: (8610) 6641 2321
Email: zqb@hpi.com.cn

Wonderful Sky Financial Group Limited
Ms. Linda Wong / Ms. Yolanda Wang / Ms. Sharon Xie / Ms. Sharon Lau
Tel: (852) 2851 1038
Fax: (852) 2865 1638
Email: lindawong@wsfg.hk / yolandawang@wsfg.hk / sharonxie@wsfg.hk /
sharonlau@wsfg.hk

SOURCE Huaneng Power International, Inc.